Below 1200 list is using his list in 2019, he actively updating this list
Joseph Elfelt @ MappingSupport.com.
Joseph Elfelt collect 3000+ arcgis rest service api endpoint over last 10+ years, you can download his list for free in PDF here
https://mappingsupport.com/p/surf_gis/list-federal-state-county-city-GIS-servers.pdf
His website is here https://mappingsupport.com/
I am working with him to try to create a web page let user directly access transparentgov's arcgis viewer from his website these arcgis server list.
Click here open in a new tab ( https://... )
Do not support http:// , only support https://. type of client server.
Click here open in a new tab ( http://... ) support both type http:// and https:// client server
* If your browser such as safari auto enforce SSL https:// connection, you have to use other such as chrome to allow http:// connection.
* below is https://
https://transparentgov.net/json2tree/esri/check/arcgisServerReport.html
Get live status
* for accurate result, click http:// link, below use https://. If your browser such as safari auto enforce SSL https:// connection, you have to use other such as chrome to allow http:// connection.
http://
http://transparentgov.net/json2tree/esri/check/arcgisServerCheck.html?start=1&end=4&test_mode=1&default=1&cors=0&jsonp=0&proxy=0&https=0&http=0&filter_by=
https://
https://transparentgov.net/json2tree/esri/check/arcgisServerCheck.html?start=1&end=4&test_mode=1&default=1&cors=0&jsonp=0&proxy=0&https=0&http=0&filter_by=
To update mySQL db, must add localdomain=1
http://localhost:10/json2tree/esri/check/arcgisServerCheck.html?localdomain=1&default=1
http://localhost:10/json2tree/esri/check/mappingsupportCheck.html?localdomain=1&default=1